Commit | Line | Data |
---|---|---|
c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
d56410e0 | 2 | /* |
1da177e4 LT |
3 | * adv7175 - adv7175a video encoder driver version 0.0.3 |
4 | * | |
5 | * Copyright (C) 1998 Dave Perks <dperks@ibm.net> | |
6 | * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> | |
7 | * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> | |
8 | * - some corrections for Pinnacle Systems Inc. DC10plus card. | |
9 | * | |
10 | * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> | |
11 | * - moved over to linux>=2.4.x i2c protocol (9/9/2002) | |
1da177e4 LT |
12 | */ |
13 | ||
14 | #include <linux/module.h> | |
18f3fa1e | 15 | #include <linux/types.h> |
5a0e3ad6 | 16 | #include <linux/slab.h> |
bba0d982 | 17 | #include <linux/ioctl.h> |
7c0f6ba6 | 18 | #include <linux/uaccess.h> |
bba0d982 | 19 | #include <linux/i2c.h> |
35631dcc HV |
20 | #include <linux/videodev2.h> |
21 | #include <media/v4l2-device.h> | |
1da177e4 LT |
22 | |
23 | MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver"); | |
24 | MODULE_AUTHOR("Dave Perks"); | |
25 | MODULE_LICENSE("GPL"); | |
26 | ||
35631dcc HV |
27 | #define I2C_ADV7175 0xd4 |
28 | #define I2C_ADV7176 0x54 | |
29 | ||
35631dcc | 30 | |
ff699e6b | 31 | static int debug; |
1da177e4 LT |
32 | module_param(debug, int, 0); |
33 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
34 | ||
1da177e4 LT |
35 | /* ----------------------------------------------------------------------- */ |
36 | ||
37 | struct adv7175 { | |
35631dcc | 38 | struct v4l2_subdev sd; |
107063c6 | 39 | v4l2_std_id norm; |
1da177e4 | 40 | int input; |
1da177e4 LT |
41 | }; |
42 | ||
35631dcc HV |
43 | static inline struct adv7175 *to_adv7175(struct v4l2_subdev *sd) |
44 | { | |
45 | return container_of(sd, struct adv7175, sd); | |
46 | } | |
1da177e4 | 47 | |
1da177e4 | 48 | static char *inputs[] = { "pass_through", "play_back", "color_bar" }; |
1da177e4 | 49 | |
f5fe58fd BB |
50 | static u32 adv7175_codes[] = { |
51 | MEDIA_BUS_FMT_UYVY8_2X8, | |
52 | MEDIA_BUS_FMT_UYVY8_1X16, | |
f1a84c9b CG |
53 | }; |
54 | ||
1da177e4 LT |
55 | /* ----------------------------------------------------------------------- */ |
56 | ||
35631dcc | 57 | static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value) |
1da177e4 | 58 | { |
35631dcc HV |
59 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
60 | ||
1da177e4 LT |
61 | return i2c_smbus_write_byte_data(client, reg, value); |
62 | } | |
63 | ||
35631dcc | 64 | static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg) |
1da177e4 | 65 | { |
35631dcc HV |
66 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
67 | ||
1da177e4 LT |
68 | return i2c_smbus_read_byte_data(client, reg); |
69 | } | |
70 | ||
35631dcc | 71 | static int adv7175_write_block(struct v4l2_subdev *sd, |
bba0d982 | 72 | const u8 *data, unsigned int len) |
1da177e4 | 73 | { |
35631dcc | 74 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
1da177e4 LT |
75 | int ret = -1; |
76 | u8 reg; | |
77 | ||
78 | /* the adv7175 has an autoincrement function, use it if | |
79 | * the adapter understands raw I2C */ | |
80 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
81 | /* do raw I2C, not smbus compatible */ | |
1da177e4 | 82 | u8 block_data[32]; |
9aa45e34 | 83 | int block_len; |
1da177e4 | 84 | |
1da177e4 | 85 | while (len >= 2) { |
9aa45e34 JD |
86 | block_len = 0; |
87 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 88 | do { |
9aa45e34 | 89 | block_data[block_len++] = data[1]; |
2467a670 | 90 | reg++; |
1da177e4 LT |
91 | len -= 2; |
92 | data += 2; | |
bba0d982 HV |
93 | } while (len >= 2 && data[0] == reg && block_len < 32); |
94 | ret = i2c_master_send(client, block_data, block_len); | |
95 | if (ret < 0) | |
1da177e4 LT |
96 | break; |
97 | } | |
98 | } else { | |
99 | /* do some slow I2C emulation kind of thing */ | |
100 | while (len >= 2) { | |
101 | reg = *data++; | |
35631dcc | 102 | ret = adv7175_write(sd, reg, *data++); |
bba0d982 | 103 | if (ret < 0) |
1da177e4 LT |
104 | break; |
105 | len -= 2; | |
106 | } | |
107 | } | |
108 | ||
109 | return ret; | |
110 | } | |
111 | ||
35631dcc | 112 | static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through) |
1da177e4 LT |
113 | { |
114 | /* for some reason pass_through NTSC needs | |
115 | * a different sub-carrier freq to remain stable. */ | |
bba0d982 | 116 | if (pass_through) |
35631dcc | 117 | adv7175_write(sd, 0x02, 0x00); |
1da177e4 | 118 | else |
35631dcc | 119 | adv7175_write(sd, 0x02, 0x55); |
1da177e4 | 120 | |
35631dcc HV |
121 | adv7175_write(sd, 0x03, 0x55); |
122 | adv7175_write(sd, 0x04, 0x55); | |
123 | adv7175_write(sd, 0x05, 0x25); | |
1da177e4 LT |
124 | } |
125 | ||
1da177e4 | 126 | /* ----------------------------------------------------------------------- */ |
bba0d982 | 127 | /* Output filter: S-Video Composite */ |
1da177e4 | 128 | |
bba0d982 HV |
129 | #define MR050 0x11 /* 0x09 */ |
130 | #define MR060 0x14 /* 0x0c */ | |
1da177e4 | 131 | |
bba0d982 | 132 | /* ----------------------------------------------------------------------- */ |
1da177e4 LT |
133 | |
134 | #define TR0MODE 0x46 | |
135 | #define TR0RST 0x80 | |
136 | ||
137 | #define TR1CAPT 0x80 | |
138 | #define TR1PLAY 0x00 | |
139 | ||
140 | static const unsigned char init_common[] = { | |
141 | ||
142 | 0x00, MR050, /* MR0, PAL enabled */ | |
143 | 0x01, 0x00, /* MR1 */ | |
144 | 0x02, 0x0c, /* subc. freq. */ | |
145 | 0x03, 0x8c, /* subc. freq. */ | |
146 | 0x04, 0x79, /* subc. freq. */ | |
147 | 0x05, 0x26, /* subc. freq. */ | |
148 | 0x06, 0x40, /* subc. phase */ | |
149 | ||
150 | 0x07, TR0MODE, /* TR0, 16bit */ | |
151 | 0x08, 0x21, /* */ | |
152 | 0x09, 0x00, /* */ | |
153 | 0x0a, 0x00, /* */ | |
154 | 0x0b, 0x00, /* */ | |
155 | 0x0c, TR1CAPT, /* TR1 */ | |
156 | 0x0d, 0x4f, /* MR2 */ | |
157 | 0x0e, 0x00, /* */ | |
158 | 0x0f, 0x00, /* */ | |
159 | 0x10, 0x00, /* */ | |
160 | 0x11, 0x00, /* */ | |
161 | }; | |
162 | ||
163 | static const unsigned char init_pal[] = { | |
164 | 0x00, MR050, /* MR0, PAL enabled */ | |
165 | 0x01, 0x00, /* MR1 */ | |
166 | 0x02, 0x0c, /* subc. freq. */ | |
167 | 0x03, 0x8c, /* subc. freq. */ | |
168 | 0x04, 0x79, /* subc. freq. */ | |
169 | 0x05, 0x26, /* subc. freq. */ | |
170 | 0x06, 0x40, /* subc. phase */ | |
171 | }; | |
172 | ||
173 | static const unsigned char init_ntsc[] = { | |
174 | 0x00, MR060, /* MR0, NTSC enabled */ | |
175 | 0x01, 0x00, /* MR1 */ | |
176 | 0x02, 0x55, /* subc. freq. */ | |
177 | 0x03, 0x55, /* subc. freq. */ | |
178 | 0x04, 0x55, /* subc. freq. */ | |
179 | 0x05, 0x25, /* subc. freq. */ | |
180 | 0x06, 0x1a, /* subc. phase */ | |
181 | }; | |
182 | ||
35631dcc HV |
183 | static int adv7175_init(struct v4l2_subdev *sd, u32 val) |
184 | { | |
185 | /* This is just for testing!!! */ | |
186 | adv7175_write_block(sd, init_common, sizeof(init_common)); | |
187 | adv7175_write(sd, 0x07, TR0MODE | TR0RST); | |
188 | adv7175_write(sd, 0x07, TR0MODE); | |
189 | return 0; | |
190 | } | |
191 | ||
192 | static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) | |
1da177e4 | 193 | { |
35631dcc HV |
194 | struct adv7175 *encoder = to_adv7175(sd); |
195 | ||
196 | if (std & V4L2_STD_NTSC) { | |
197 | adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc)); | |
198 | if (encoder->input == 0) | |
199 | adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */ | |
200 | adv7175_write(sd, 0x07, TR0MODE | TR0RST); | |
201 | adv7175_write(sd, 0x07, TR0MODE); | |
202 | } else if (std & V4L2_STD_PAL) { | |
203 | adv7175_write_block(sd, init_pal, sizeof(init_pal)); | |
204 | if (encoder->input == 0) | |
205 | adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */ | |
206 | adv7175_write(sd, 0x07, TR0MODE | TR0RST); | |
207 | adv7175_write(sd, 0x07, TR0MODE); | |
208 | } else if (std & V4L2_STD_SECAM) { | |
209 | /* This is an attempt to convert | |
210 | * SECAM->PAL (typically it does not work | |
211 | * due to genlock: when decoder is in SECAM | |
212 | * and encoder in in PAL the subcarrier can | |
f8a7647d | 213 | * not be synchronized with horizontal |
35631dcc HV |
214 | * quency) */ |
215 | adv7175_write_block(sd, init_pal, sizeof(init_pal)); | |
216 | if (encoder->input == 0) | |
217 | adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */ | |
218 | adv7175_write(sd, 0x07, TR0MODE | TR0RST); | |
219 | adv7175_write(sd, 0x07, TR0MODE); | |
220 | } else { | |
cc5cef8e HV |
221 | v4l2_dbg(1, debug, sd, "illegal norm: %llx\n", |
222 | (unsigned long long)std); | |
35631dcc HV |
223 | return -EINVAL; |
224 | } | |
cc5cef8e | 225 | v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std); |
35631dcc HV |
226 | encoder->norm = std; |
227 | return 0; | |
228 | } | |
229 | ||
5325b427 HV |
230 | static int adv7175_s_routing(struct v4l2_subdev *sd, |
231 | u32 input, u32 output, u32 config) | |
35631dcc HV |
232 | { |
233 | struct adv7175 *encoder = to_adv7175(sd); | |
234 | ||
5325b427 HV |
235 | /* RJ: input = 0: input is from decoder |
236 | input = 1: input is from ZR36060 | |
237 | input = 2: color bar */ | |
35631dcc | 238 | |
5325b427 | 239 | switch (input) { |
35631dcc HV |
240 | case 0: |
241 | adv7175_write(sd, 0x01, 0x00); | |
242 | ||
243 | if (encoder->norm & V4L2_STD_NTSC) | |
244 | set_subcarrier_freq(sd, 1); | |
245 | ||
246 | adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */ | |
247 | if (encoder->norm & V4L2_STD_SECAM) | |
248 | adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */ | |
249 | else | |
250 | adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */ | |
251 | adv7175_write(sd, 0x07, TR0MODE | TR0RST); | |
252 | adv7175_write(sd, 0x07, TR0MODE); | |
253 | /*udelay(10);*/ | |
d56410e0 | 254 | break; |
1da177e4 | 255 | |
35631dcc HV |
256 | case 1: |
257 | adv7175_write(sd, 0x01, 0x00); | |
258 | ||
259 | if (encoder->norm & V4L2_STD_NTSC) | |
260 | set_subcarrier_freq(sd, 0); | |
261 | ||
262 | adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */ | |
263 | adv7175_write(sd, 0x0d, 0x49); | |
264 | adv7175_write(sd, 0x07, TR0MODE | TR0RST); | |
265 | adv7175_write(sd, 0x07, TR0MODE); | |
266 | /* udelay(10); */ | |
1da177e4 LT |
267 | break; |
268 | ||
35631dcc HV |
269 | case 2: |
270 | adv7175_write(sd, 0x01, 0x80); | |
271 | ||
272 | if (encoder->norm & V4L2_STD_NTSC) | |
273 | set_subcarrier_freq(sd, 0); | |
274 | ||
275 | adv7175_write(sd, 0x0d, 0x49); | |
276 | adv7175_write(sd, 0x07, TR0MODE | TR0RST); | |
277 | adv7175_write(sd, 0x07, TR0MODE); | |
278 | /* udelay(10); */ | |
1da177e4 LT |
279 | break; |
280 | ||
1da177e4 | 281 | default: |
5325b427 | 282 | v4l2_dbg(1, debug, sd, "illegal input: %d\n", input); |
1da177e4 LT |
283 | return -EINVAL; |
284 | } | |
5325b427 HV |
285 | v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]); |
286 | encoder->input = input; | |
1da177e4 LT |
287 | return 0; |
288 | } | |
289 | ||
ebcff5fc HV |
290 | static int adv7175_enum_mbus_code(struct v4l2_subdev *sd, |
291 | struct v4l2_subdev_pad_config *cfg, | |
292 | struct v4l2_subdev_mbus_code_enum *code) | |
f1a84c9b | 293 | { |
ebcff5fc | 294 | if (code->pad || code->index >= ARRAY_SIZE(adv7175_codes)) |
f1a84c9b CG |
295 | return -EINVAL; |
296 | ||
ebcff5fc | 297 | code->code = adv7175_codes[code->index]; |
f1a84c9b CG |
298 | return 0; |
299 | } | |
300 | ||
da298c6d HV |
301 | static int adv7175_get_fmt(struct v4l2_subdev *sd, |
302 | struct v4l2_subdev_pad_config *cfg, | |
303 | struct v4l2_subdev_format *format) | |
f1a84c9b | 304 | { |
da298c6d | 305 | struct v4l2_mbus_framefmt *mf = &format->format; |
f1a84c9b CG |
306 | u8 val = adv7175_read(sd, 0x7); |
307 | ||
da298c6d HV |
308 | if (format->pad) |
309 | return -EINVAL; | |
310 | ||
f1a84c9b | 311 | if ((val & 0x40) == (1 << 6)) |
f5fe58fd | 312 | mf->code = MEDIA_BUS_FMT_UYVY8_1X16; |
f1a84c9b | 313 | else |
f5fe58fd | 314 | mf->code = MEDIA_BUS_FMT_UYVY8_2X8; |
f1a84c9b CG |
315 | |
316 | mf->colorspace = V4L2_COLORSPACE_SMPTE170M; | |
317 | mf->width = 0; | |
318 | mf->height = 0; | |
319 | mf->field = V4L2_FIELD_ANY; | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
6e80c473 HV |
324 | static int adv7175_set_fmt(struct v4l2_subdev *sd, |
325 | struct v4l2_subdev_pad_config *cfg, | |
326 | struct v4l2_subdev_format *format) | |
f1a84c9b | 327 | { |
6e80c473 | 328 | struct v4l2_mbus_framefmt *mf = &format->format; |
f1a84c9b | 329 | u8 val = adv7175_read(sd, 0x7); |
6e80c473 HV |
330 | int ret = 0; |
331 | ||
332 | if (format->pad) | |
333 | return -EINVAL; | |
f1a84c9b CG |
334 | |
335 | switch (mf->code) { | |
f5fe58fd | 336 | case MEDIA_BUS_FMT_UYVY8_2X8: |
f1a84c9b CG |
337 | val &= ~0x40; |
338 | break; | |
339 | ||
f5fe58fd | 340 | case MEDIA_BUS_FMT_UYVY8_1X16: |
f1a84c9b CG |
341 | val |= 0x40; |
342 | break; | |
343 | ||
344 | default: | |
345 | v4l2_dbg(1, debug, sd, | |
346 | "illegal v4l2_mbus_framefmt code: %d\n", mf->code); | |
347 | return -EINVAL; | |
348 | } | |
349 | ||
6e80c473 HV |
350 | if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) |
351 | ret = adv7175_write(sd, 0x7, val); | |
f1a84c9b CG |
352 | |
353 | return ret; | |
354 | } | |
355 | ||
b7eccc46 CG |
356 | static int adv7175_s_power(struct v4l2_subdev *sd, int on) |
357 | { | |
358 | if (on) | |
359 | adv7175_write(sd, 0x01, 0x00); | |
360 | else | |
361 | adv7175_write(sd, 0x01, 0x78); | |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
1da177e4 LT |
366 | /* ----------------------------------------------------------------------- */ |
367 | ||
35631dcc | 368 | static const struct v4l2_subdev_core_ops adv7175_core_ops = { |
35631dcc | 369 | .init = adv7175_init, |
b7eccc46 | 370 | .s_power = adv7175_s_power, |
1da177e4 | 371 | }; |
1da177e4 | 372 | |
35631dcc HV |
373 | static const struct v4l2_subdev_video_ops adv7175_video_ops = { |
374 | .s_std_output = adv7175_s_std_output, | |
375 | .s_routing = adv7175_s_routing, | |
ebcff5fc HV |
376 | }; |
377 | ||
378 | static const struct v4l2_subdev_pad_ops adv7175_pad_ops = { | |
379 | .enum_mbus_code = adv7175_enum_mbus_code, | |
da298c6d | 380 | .get_fmt = adv7175_get_fmt, |
6e80c473 | 381 | .set_fmt = adv7175_set_fmt, |
35631dcc HV |
382 | }; |
383 | ||
384 | static const struct v4l2_subdev_ops adv7175_ops = { | |
385 | .core = &adv7175_core_ops, | |
386 | .video = &adv7175_video_ops, | |
ebcff5fc | 387 | .pad = &adv7175_pad_ops, |
35631dcc HV |
388 | }; |
389 | ||
390 | /* ----------------------------------------------------------------------- */ | |
1da177e4 | 391 | |
bba0d982 HV |
392 | static int adv7175_probe(struct i2c_client *client, |
393 | const struct i2c_device_id *id) | |
1da177e4 LT |
394 | { |
395 | int i; | |
1da177e4 | 396 | struct adv7175 *encoder; |
35631dcc | 397 | struct v4l2_subdev *sd; |
1da177e4 LT |
398 | |
399 | /* Check if the adapter supports the needed features */ | |
bba0d982 HV |
400 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
401 | return -ENODEV; | |
1da177e4 | 402 | |
bba0d982 HV |
403 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
404 | client->addr << 1, client->adapter->name); | |
1da177e4 | 405 | |
c02b211d | 406 | encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL); |
bba0d982 | 407 | if (encoder == NULL) |
1da177e4 | 408 | return -ENOMEM; |
35631dcc HV |
409 | sd = &encoder->sd; |
410 | v4l2_i2c_subdev_init(sd, client, &adv7175_ops); | |
107063c6 | 411 | encoder->norm = V4L2_STD_NTSC; |
1da177e4 | 412 | encoder->input = 0; |
1da177e4 | 413 | |
35631dcc | 414 | i = adv7175_write_block(sd, init_common, sizeof(init_common)); |
1da177e4 | 415 | if (i >= 0) { |
35631dcc HV |
416 | i = adv7175_write(sd, 0x07, TR0MODE | TR0RST); |
417 | i = adv7175_write(sd, 0x07, TR0MODE); | |
418 | i = adv7175_read(sd, 0x12); | |
419 | v4l2_dbg(1, debug, sd, "revision %d\n", i & 1); | |
1da177e4 | 420 | } |
bba0d982 | 421 | if (i < 0) |
35631dcc | 422 | v4l2_dbg(1, debug, sd, "init error 0x%x\n", i); |
1da177e4 LT |
423 | return 0; |
424 | } | |
425 | ||
bba0d982 | 426 | static int adv7175_remove(struct i2c_client *client) |
1da177e4 | 427 | { |
35631dcc HV |
428 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
429 | ||
430 | v4l2_device_unregister_subdev(sd); | |
1da177e4 LT |
431 | return 0; |
432 | } | |
433 | ||
434 | /* ----------------------------------------------------------------------- */ | |
435 | ||
bba0d982 HV |
436 | static const struct i2c_device_id adv7175_id[] = { |
437 | { "adv7175", 0 }, | |
438 | { "adv7176", 0 }, | |
439 | { } | |
440 | }; | |
441 | MODULE_DEVICE_TABLE(i2c, adv7175_id); | |
1da177e4 | 442 | |
dc71443f HV |
443 | static struct i2c_driver adv7175_driver = { |
444 | .driver = { | |
dc71443f HV |
445 | .name = "adv7175", |
446 | }, | |
447 | .probe = adv7175_probe, | |
448 | .remove = adv7175_remove, | |
449 | .id_table = adv7175_id, | |
1da177e4 | 450 | }; |
dc71443f | 451 | |
c6e8d86f | 452 | module_i2c_driver(adv7175_driver); |